Science

Sunday, 30 November 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Graphene
Although graphene consists of an element that is abundant on Earth, its production costs are high.
This is a major obstacle to graphene finding mass application in many fields. For now, only small amounts are produced.
Anorexia Nervosa
It is not yet known exactly which genes are responsible for the onset of mental anorexia nervosa.
However, it has been found that the disorder is highly heritable. Studies of twins have shown that t ...
Fungi
Fungi were considered a separate kingdom, more closely related to animals than to plants.
This was determined based on phylogeny (origin), biochemistry, and anatomy. Fungi are considered to ...
Earth
The Earth's atmosphere weighs approximately 5.15 trillion tons.
As much as 75 percent of the atmosphere is at an altitude of less than 11 kilometers. With each addi ...
Silver
The use of silver is very wide, mainly as a precious metal.
925 silver alloyed with copper is used to make jewelry, dishes and cutlery, medals, and musical inst ...
Snow
It is highly likely that no two snowflakes exist and have never existed exactly alike.
Snow crystals are almost perfectly symmetrical, although most are irregular in many respects. The ru ...
Anorexia Nervosa
One can speak of anorexia when certain symptoms appear in a person’s behavior.
These include: BMI is equal to or less than 17.5 The presence of a strong fear of getting fat or ob ...
Liver
It consists of four lobes, each made up of eight sections.
Amber
The English word amber derives from the Arabic anbar.
Its ancient names(electrum in Latin and ēlektron in Ancient Greek) are derived from the Ancient Greek word ēlektōr, which means "shining sun".
NASA
It is estimated that NASA has sent over 2000 animals into space.
Apart from "Ham the Astrochimp," the agency sent insects, rats, pigs, jellyfish, spiders, and rabbits.